Microsoft Defender
Display a list of cmdlets contained in the Defender module
Check for running Microsoft Defender services
Get-MpComputerStatus
allows you to display the current status of Windows Defender: enabled options, virus definition date and version, last scan time, and others.
To quickly check if Windows Defender is running on your computer and find out the last antivirus definition update date, run the following PowerShell command:
Disable Realtime monitoring altogether
References
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